Abstract

The invention is a connection duct between the blower and a mixing device of a burner. The connection duct expands wedge-shaped along a first direction and diverts air from the blower to a second direction. The connection duct further comprises diverting means for diverting the air in a circular flow around the second direction corresponding to a longitudinal axis of the mixing device. The diverting means comprise a tube section with at least one inflow opening arranged in the peripheral wall of the diverting means. A truncated cone comprising a tapering section is arranged in the tube section so that the tapering section faces in the direction of the mixing device. A passage cross-section of the inflow opening can be adjusted by a tube arranged in the peripheral wall which can be rotated around the tube's longitudinal axis and bears against the internal surface of the tube section.

IPC Classes  ?

• F23M 3/00 - Firebridges
• F23D 14/36 - Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
• F23C 7/00 - Combustion apparatus characterised by arrangements for air supply
• F23D 11/00 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
• F23L 5/02 - Arrangements of fans or blowers